Evaporating apparatus



Jan. v4 1927.

w. L. BADGER EVAPORATIHG APPARATUS Filed llay 19. 1924 2 Sheets-Sheet 1 @.5 www MVM/mm Ja'n. 4 1927- 1,612,961 W. L. BADGER EVAPORAT ING APPARATUS Filed May 19, 1924 2 Sheets-Sheet 2 ll/mento:

Patented Jan. :4, 1927.

UNITED STATES PAJiiINT OFFICE.

WALTER L. BADGER, OF ANN ARBQ R, MICHIGAN, ASSIGNOR TO SWENSON EVAPORA- TOR COMPANY, 0F HARVEY, ILLINOIS, A CORYORATION OF ILLINOIS.

Application filed May 19, 1924. Serial No. 714,512.

This invention relates sures and refers ers designed for ing cylinders YAPOBATING APPARATUS.

generally to clomore particularly to covclosing the ends of the heatof vacuum evaporating apdated May 22, 1888.

One of the essential objects of the invention is to providek a cover of this. type having passages usual: evaporating for connecting pairs o A tubes within the cylinder f the to form coils in which the liquid is adapted to iow freely.

Another object is carries a feed box to pr Ovide a cover that for receiving the [liquid to be treated and that also carries a plural ity of distributing pipes liquid from the feed box to the for conveying the inlet ends of the coils in the cylinder. I

With the above and other objects in view the invention consists in tures of construction,

combinations and rangements of parts as will be more fully certain novel feaardescribed and particularly pointed out in the appended claims. v

In the .accompanying drawing Figure 1 is a front elevation of a cover embodying my invention mountedv upon a cylinder of a vacuum heating apparatus;

Figure thereof Figure 2 is a fragmentary side elevation 3 is a top plan view thereof;

Figure 4 is an enlarged detail view;

Figure plan view ofthe const Figure 3.

Describing in detail the particular em' 5 is an enlarged fragmentary top ruction shown in bodiment of my invention shown Iin the drawings,

the reference character 1`desig nates a cylinder, preferably of a vacuum evaporatiiig apparatus having a head 2 supporting a plurality evaporating tubes 3 nally of the cylinder.

that

of spaced open-ended extend longitudi- These tubes may be secured in any suitable way to the head, and the latter may be secured by any suitable means to the cylinder.

As shown, the ends ofthe tubes 3 are preferably expanded in suitable openings 4 in the head 2 and the latter are preferably detachably secured by means of screws ward edge of a coller 7 the cylinder.

Heretofore, the heating type of vacuum evaporati 5 to a flange 6 at the forthat is riveted to cylinders of this ng apparatus have when it was desired to detach thecover from the cylinder head. However, the return bends provided by the flanges on the covers cause eddies to be formed in theliquid so that ythe flow from one tube to lanother is restrained. Moreover, considerable time and labor is required to adjust the separate couplings. and the many nuts or bolts or other securing elements for the cover whenever it is desired to attach or detach the same. y

With the present invention, the objec-l tionable features just referred to are overcome entirely, and I preferably provide a cover 8 that is swingingly mounted upon the collar 7 secured to the cylinder and that is provided lwith curved passages'9 for connecting pairs of the tubes 3 to form coils through which the liquid to be treated may flow. As shown, the cover 8 is preferably provided with spaced arms'lO that are preferably connected to spaced arms 11 projecting from the collar 7 by means of a vertical bolt 12. In order that the liquidwill have a stream line flow from one tubesto another,

of the tubes. To prevent leakage when the cover is closed, the expanded ends of the tubes 3 preferably project slightly beyond the outer face of the head 2 and enter suitable recesses 17 in the inner face of the cover .while a suitable yieldable gasket 18. is secured to the outer face of the head 2 and cooperates with the inner face of the cover when the latter is closed to form a seal. Any suitable means such as a screw 19 extending through the head 2 may be employed for holding the cover 8 in closed position.

For supplying the liquid to be treated to lill) 1 the inlet ends 2O` of the coils WithinA the cylinder, Il preferably provide a plurality of pipes 21 that have vertical portions 22 connected at their lower ends to a feed box 24 located at the lower end of the 'cover 8, and that'have horizontal portions'jlV 25 =vvhich are connected to the vertical portions 22 b i suitable couplings 26 and extend throng the cover 8 vat the proper points for registering with the inlet ends of the coils when the cover is closed. The feed box 24 is preferably formed integral With the cover 8 and is provided with an inlet opening 27 which, when the. cover is closed, is adapted to re ister with the free end of a suitable .supp y pipe 28 extending through the flange 6. and head 2 secured to the cylinder. Any suitable means (not shown) may be employed for regulating the supply of liquid conveyed 'through the pipe 28 to the feed box.

To prevent any foreign matter from passing from` the feed box 24 to the coils Within the cylinder, I preferably provide a suitable strainer vin the form of a foraminous plate 29 that is supported upon horizontal flanges 30 projecting inwardly from the inner Walls of the feed box.

in thecylinder is such that the liquid will have a stream line flow from one tube to another. This is particularly desirable in an apparatus of the kind described.

lVhat I claim as my invention is:

1. The combination with a cylinder having a head and a plurality of tubes in the cylinder extending through the head, of a cover connected to the cylinder having passages therein for connecting pairs of said tubes to form coils, the cross sectional area of the inlet ends of the passages being greatery than the cross sectional area of the discharge ends of' the tubes and the cross sectional area of the outlet ends of the passages being less than the cross sectional area of the inlet ends of the tubes. l

2. The combination With a cylinder having a head and a plurality of tubes in the cylinder extending through the head, of acover having passages therein for connecting pairs of said tubes to form coils, a feed box intey gral with said cover, and means for pivotally connecting said cover to said cylinder.

3'. The combinationvvith a cylinder having ahead and a plurality of tubes in the cylinderA extending through the! head, of a cover having passages therein for connecting pairs ofv -said tubes to form coils, a feed box integral with said cover, arms projecting from the cover, arms projecting from the cylinder, and a pivot member connecting the the last-mentioned arms to the first-mentioned arms.

4. The combination With a cylinder having a head and a plurality oftubes in the cylinder extending through the head, of a cover connected to the cylinder having passages therein and connecting pairs of said tubes, a liquid feed box carried by the cover, means for conducting liquid from the feed box to said passages, and means for connecting the cover to the cylinder whereby the cover liquid conducting means and feed box may be moved as a unit. 5. The combination with a cylinder having a head and a plurality of tubes in the cylinder extending through the head, of a cover connected to the cylinder having passages therein for connecting pairs of said tubes to form coils, a liquid'fe'ed box carried by the cover, and distributing pipes carried by the cover for conveying-'the liquid from the feed box to the inlet ends of the coils aforesaid.

6. The combination With a cylinder having a head and a plurality of tubes in the cylinder extending through" the head, of a cover connected to the cylinder having passages therein for connecting pairs of said tubes to form coils, a liquid feed box carried by the cover, means carried by the cylinder head for conveying the liquid to the feed box, and means carried by the cover for conveying the liquid from the feed box to the inlet ends of the coils aforesaid.

7. The combination with a c linder having a head and a`plurality of tu es in the cylinder extending through the head, of a cover connected to the cylinder having passages therein for connecting pairs of said tubes to form coils, a liquid feed box carried by the cover, a supply pipe carired by the cylinder head for conveying the liquid to the feed box said feed box having an inlet opening adapted to register with the discharge end of said supply pipe when said cover is closed,

and means carried bythe cover for conveying the liquid from the feed box to the inlet ends of the coils aforesaid. l

8. In a vacuum evaporating apparatus, the combinationwith a cylinder having a head, and a plurality of tubes in the cyllnder extending through the head, of a cover connected to the cylinder, a liquid feed box carried by the cover, means for supplying a liquid to the feed box, and means carried by the cover for conveyin the liquid from the feed box to certain o cylinder.

9. -In combination with a cylinder having the tubes in the `ing pairs of said a head and a plurality of tubes in the cylinder extending through the head, of a cover connected to the cylinder having passages therein for connecting pairs of said tubes to form coils, the cross sectional area of said passages being greater at the inlet than at the discharge thereof.

l0. The combination with a cylinder having a head and a plurality of tubes in the cylinder extending through the head, of a cover having passages therein for connecttubes to form coils, an inlet conduit for supplying fluid to said passages of the cover, and means for detachabl connecting said cover and cylinder whereliy the cover may be :removed without disturbing said inlet conduit.

11. The combination with a cylinder having a head and aplurality of tubes in the cylinder extending through the head, of a cover having passages therein for connecting pairs of said tubes to form coils, means for pivotally mounting said cover whereby the latter may be swung away from the cylinder head, a .supply conduitl secured to said'head for conducting liquid to said tubes, said supply conduit automatically breaking joint with said cover when the cover is swung on its pivot.

12. The combination with a cylinder having a head. and a plurality of tubes in the cylinder extending through the head, of a cover havin passages therein for connecting pairs of sai tubes to form coils, a feed box carried by the cover, means for pivotally mounting said cover whereby the latter may be swung away from the cylinder head, a supply conduit for conducting liquid to said feed box, distributing pipes carried by the cover for conducting liquid from the feedbox ,to the said tubes, said supply conduit and passages automatically breaking joint with said cover when the cover is swung on its pivot..

13. The combination with a cylinder having a head and a plurality of tubes in the cylinder extending through the head,`of a cover pivotally connecte to the cylinder having passages therein for connecting pairs of tubes to form coils, a relatively stationary iuid supply conduit secured in said head,

means associated with said cover for supplying fluid from the supply conduit to said tubes, said supply conduit automatically breaking joint with said means upon a pivotal movement of the cover.

In testimony whereof I aiiix my signature.

WALTER L. BADGER. 

